Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240508-en -
resource tags
arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system -
submitted
26/05/2024, 03:50
Static task
static1
Behavioral task
behavioral1
Sample
2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe
Resource
win10v2004-20240226-en
General
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Target
2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe
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Size
36KB
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MD5
aa44caf6478289043774feece217573a
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SHA1
dd454faf4f6f8f5e4d374ac4213274ca38ddf8f8
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SHA256
1fce562d33b6ed2fd5e6afe4cf856bfcc21e679ba8d7344527a530a233697ae5
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SHA512
b6cdfd8114e26061f2bb56df0b6960c688c6a2fa210b06dd7178d05e3f4c55fca7afc610586d84b812018afdffd24b7cbd1caec51a8151e9f24969dd051b9c9f
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SSDEEP
384:btBYQg/WIEhUCSNyepEjYnDOAlzVol6U/zzo+tkq4l8tFFxE2B0qZ5at:btB9g/WItCSsAGjX7r3BTZ52
Malware Config
Signatures
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Detection of CryptoLocker Variants 1 IoCs
resource yara_rule behavioral1/files/0x000c00000001227b-10.dat CryptoLocker_rule2 -
Executes dropped EXE 1 IoCs
pid Process 2548 gewos.exe -
Loads dropped DLL 1 IoCs
pid Process 2980 2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of UnmapMainImage 2 IoCs
pid Process 2980 2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe 2548 gewos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2980 wrote to memory of 2548 2980 2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe 28 PID 2980 wrote to memory of 2548 2980 2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe 28 PID 2980 wrote to memory of 2548 2980 2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe 28 PID 2980 wrote to memory of 2548 2980 2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe"C:\Users\Admin\AppData\Local\Temp\2024-05-26_aa44caf6478289043774feece217573a_cryptolocker.exe"1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2980 -
C:\Users\Admin\AppData\Local\Temp\gewos.exe"C:\Users\Admin\AppData\Local\Temp\gewos.exe"2⤵
- Executes dropped EXE
- Suspicious use of UnmapMainImage
PID:2548
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
36KB
MD5d046b310113223544a59c64b46e2721a
SHA130850ef625daacf9f55539f51f248cd31dc7a477
SHA25624b1d02f70ecf999693bf5e2225bd642ff5bab6ac6c78931f1e1d50306c79f1b
SHA512bb93247e5518e5e8b263cb5124eec3a1478c0393ecb818bd1d5bb3b3803a3e9ab235439758337e90e9f907b9bac566fe47062bc171993286596c0ed1d08e183d